2019 Ivannikov Ispras Open Conference (ISPRAS)最新文献

Comparison of Named Entity Recognition Tools Applied to News Articles 标题实体识别工具在新闻文章中的应用比较

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00017

S. Vychegzhanin, E. Kotelnikov

{"title":"Comparison of Named Entity Recognition Tools Applied to News Articles","authors":"S. Vychegzhanin, E. Kotelnikov","doi":"10.1109/ISPRAS47671.2019.00017","DOIUrl":"https://doi.org/10.1109/ISPRAS47671.2019.00017","url":null,"abstract":"Named Entity Recognition in texts is an important natural language processing task. There are many systems to solve this problem. These systems differ in targeting domains, processing methodologies, supported languages and recognized entity types. The presence of a large number of aspects creates difficulties for the user when choosing the appropriate tool for solving a specific problem. The aim of this work is a comparative study of seven publicly available and well-known libraries that can elicit named entities: Stanford NER, spaCy, NLTK, Polyglot, Flair, GATE and DeepPavlov. The article consists of seven sections. The introduction lists the areas of application for the Named Entity Recognition task and the approaches used to solve it. The second section is devoted to a review of works in which comparative studies of existing tools are presented. In the third section, the characteristics of the four text corpora that were used during the experiments are given. The fourth section contains a brief description of the tools selected for research. The fifth section describes the metrics used to evaluate tool performance. The sixth section presents the results of the experiments and their discussion. In conclusion the results of the work are summarized. The results of the study show that for the English language close values of the F1-score for the problem of Named Entities Recognition have the Flair and DeepPavlov libraries. For the Russian language the first place is taken by the DeepPavlov library, significantly surpassing other tools in quality.","PeriodicalId":154688,"journal":{"name":"2019 Ivannikov Ispras Open Conference (ISPRAS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125019857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

The Study of Neurodynamic Systems of Continuous Adaptive Control 连续自适应控制的神经动力系统研究

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00027

V. Sudakov, V. Osipov, Y. Nechaev, A. Vasilyev

引用次数: 0

Modeling the Reservoir Flooding Problem Using the Extended Version of the PorousMultiphaseFoam Library 利用扩展版的多孔多相泡沫库对油藏驱油问题进行建模

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00025

D. Romanova, S. Strijhak, Konstantin Koshelev, M. Kraposhin

引用次数: 0

The Application of Modular Arithmetic for Matrix Calculations 模算法在矩阵计算中的应用

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00013

V. Kuchukov, M. Babenko

引用次数: 3

FEMEngine: Finite Element Method C++ Code Based on Functional and Template Metaprogramming 基于函数式和模板元编程的有限元方法c++代码

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00020

A. Gurin, A. Baykin, Timofey Polyansky, A. Krivtsov

引用次数: 1

Computation Efficiency of S-CLSVOF Method for Additive Manufacturing Applications 增材制造中S-CLSVOF方法的计算效率

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00022

M. Khomenko

引用次数: 1

Deep Learning for Customs Classification of Goods Based on Their Textual Descriptions Analysis 基于文本描述分析的商品海关分类深度学习

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00014

Anastasiia Ryzhova, I. Sochenkov

引用次数: 0

High-Performance Flexible Memory Allocators in Complex Projects 复杂项目中的高性能灵活内存分配器

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00010

I. Trub

{"title":"High-Performance Flexible Memory Allocators in Complex Projects","authors":"I. Trub","doi":"10.1109/ISPRAS47671.2019.00010","DOIUrl":"https://doi.org/10.1109/ISPRAS47671.2019.00010","url":null,"abstract":"The article proposes the methodology of data analysis and code design solutions to improve the flexibility of custom allocator assignment for simple data types and instances of data type classes. The methodology is based on special wrappers of memory functions, collecting data by the execution of source code, and analysing allocation/release traces with subsequent patterns extraction. Then the corresponding custom allocator is chosen for each pattern found and implemented in some module of source code as a container for user data, thus replacing malloc/free. The article describes the usage of the proposed approach for LLVM (Low Level Virtual Machine), which is a well-known tool for building compilers. It is shown that the choice of appropriate allocator provides the improvement of LLVM-based compiler's performance. An appropriate custom allocator is more effective than malloc, in particular, linear allocator is the best for StringMap and DomTreeNodeBase, stack allocator - for BitVector and linked list allocator - for Buckets. Aggregate performance improvement reaches around 10%. The methodology is implemented in shaders' compiler, but can be used in any project that uses LLVM or generally performs memory requests more or less intensively.","PeriodicalId":154688,"journal":{"name":"2019 Ivannikov Ispras Open Conference (ISPRAS)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133696921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parametric Study of the Accuracy of OpenFOAM Solvers for the Oblique Shock Wave Problem 斜激波问题OpenFOAM求解器精度的参数化研究

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00023

A. Bondarev, A. Kuvshinnikov

引用次数: 9

Numerical Experiments with the Coupled Ocean-Earth-Atmosphere Circulation Model and the Analysis of Decadal Variability of Its Main Physical Characteristic 海洋-地球-大气耦合环流模式的数值试验及其主要物理特征的年代际变化分析

2019 Ivannikov Ispras Open Conference (ISPRAS) Pub Date : 2019-12-01 DOI: 10.1109/ISPRAS47671.2019.00028

N. Tuchkova, K. Belyaev, Gury Mikhailov

引用次数: 0